The aim of this module is to provide a Python API to the un0rick board, a Lattice FPGA-powered ultrasound pulse-echo board.
In this setup, the board has been flashed with a dedicated binary using iceprog, and connected to the RPi using a 40-pin ribbon.
In short, it looks like this:
Been testing it on un0rick v1.1 (with double SMA connectors) on a RPi4, with python2 and python3.
To get a blinky, one can use the following
python3 pyUn0.py single
For a single line,
python3 pyUn0.py single
python3 pyUn0.py process
UN0RICK = us_spi()
UN0RICK.init()
UN0RICK.test_spi(3)
TGCC = UN0RICK.create_tgc_curve(10, 980, True)[0] # Gain: linear, 10mV to 980mV
# # (1% to 98% gain over 200us)
UN0RICK.set_tgc_curve(TGCC) # We then apply the curve
UN0RICK.set_period_between_acqs(int(2500000)) # Setting 2.5ms between shots
UN0RICK.JSON["N"] = 1 # Experiment ID of the day
UN0RICK.set_multi_lines(False) # Single acquisition
UN0RICK.set_acquisition_number_lines(1) # Setting the number of lines (1)
UN0RICK.set_msps(0) # Sampling speed setting (64Msps)
A = UN0RICK.set_timings(200, 100, 2000, 5000, 200000)# Settings the series of pulses, 200ns pulse.
UN0RICK.JSON["data"] = UN0RICK.do_acquisition() # Doing the acquisition and saves
